Pre-warning system equipment for pedestrian crossing zebra crossing

Abstract

The invention belongs to the technical field of traffic safety pre-warning, and provides a pedestrian zebra crossing pre-warning system device which comprises a mounting stand column, a monitoring assembly and a pre-warning assembly, a connecting base is arranged at the top of the front side of the mounting stand column, the monitoring assembly is arranged on the connecting base, and the monitoring assembly comprises an AI camera, a laser radar and a far infrared sensor. The early warning assembly comprises an electronic warning board, a laser transmitter and a laser spotlight; by comprehensively using various sensors such as the AI camera, the infrared sensor and the laser radar, pedestrians can be monitored and recognized from different angles and different modes, the accuracy of pedestrian recognition is improved, and the method is particularly suitable for pedestrian detection under complex weather and illumination conditions and has a wide application prospect. Through the synergistic effect of the laser spotlight, the laser curtain wall, the electronic warning board and the warning sound, early warning is performed on drivers and pedestrians from multiple aspects of visual sense and auditory sense, the early warning effect is enhanced, and the safety of the pedestrians crossing the road is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of traffic safety early warning, in particular to a pedestrian crossing zebra crossing early warning system device. Background Art

[0002] In today's traffic environment, ensuring pedestrian safety while crossing the road is a crucial aspect of traffic safety. With the continuous advancement of technology, a number of technical solutions have emerged on the market to address pedestrian safety issues at zebra crossings. Currently, more mature technologies primarily utilize visual AI algorithms, LiDAR, and far-infrared sensors to address safety issues for pedestrians crossing zebra crossings in weather conditions, at night, in the absence of traffic lights, in poor lighting, and in areas with large blind spots. However, in actual traffic scenarios, pedestrians still face many dangerous situations when crossing the road. First, weather conditions can reduce road visibility. For example, in adverse weather conditions such as rain, snow, and fog, the driver's vision is severely affected, making it difficult to clearly observe pedestrians on the zebra crossing, increasing the risk of pedestrians being hit. Second, at night, if pedestrians are wearing dark clothes, it is difficult for drivers to spot pedestrians in time in low light conditions, especially on roads without street lights or with poor street lighting. Furthermore, the high beams of oncoming vehicles can produce strong glare, causing the driver to instantly have a visual blind spot, making it impossible to see the situation on the zebra crossing ahead, which can easily lead to traffic accidents. In addition, some pedestrians engage in uncivilized behavior such as crossing the road randomly, not abiding by traffic rules, and crossing the road at will, which also poses a huge hidden danger to traffic safety.

[0003] While existing technical solutions can improve pedestrian crossing safety to a certain extent, they still have some shortcomings when dealing with the complex and ever-changing traffic conditions mentioned above. For example, some systems need to improve the accuracy and real-time performance of pedestrian recognition. They cannot accurately distinguish different types of pedestrians, nor can they accurately and promptly display the distance between pedestrians and vehicles, which can hinder drivers from making correct judgments and actions. Therefore, developing a more advanced and reliable pedestrian crossing warning system is of great practical significance.

[0004] Therefore, those skilled in the art have proposed a pedestrian crossing warning system device to solve the problems raised in the background technology. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a pedestrian crossing zebra crossing warning system device.

[0006] A pedestrian crossing zebra crossing warning system device, comprising: The installation column is set on the road at one end of the pedestrian crossing and on the right side of the main road vehicle travel direction, and a connecting seat is set on the top of the front side; A monitoring component, which is mounted on the connector and includes an AI camera, a laser radar, and a far-infrared sensor, which are used to collaboratively monitor whether there are pedestrians on the crosswalk; and The early warning component includes an electronic warning sign, a laser transmitter and a laser spotlight, which is used to obtain the monitoring results of the monitoring component, switch from standby mode to working mode according to the monitoring results, and perform graded early warning on the monitoring results.

[0007] Preferably, a first rotating seat, a second rotating seat and a third rotating seat are respectively provided on the left side, the right side and the bottom of the connecting seat.

[0008] Preferably, the AI ​​camera is arranged on the third rotating seat, the laser radar is arranged on the second rotating seat, and the far-infrared sensor is arranged on the front side of the connecting seat. When at least one of the AI ​​camera, the laser radar and the far-infrared sensor detects the presence of pedestrians in the humanoid passage area, the warning component is triggered to switch to the working mode.

[0009] Preferably, the electronic warning sign is arranged in the middle of one side of the mounting column. When the electronic warning sign is in standby mode, it displays white backlight and static warning information. When the electronic warning sign is in working mode, it displays yellow backlight, pedestrian category and pedestrian position distance danger level.

[0010] Preferably, the pedestrian position distance danger level includes a white progress bar, a yellow progress bar and a red progress bar displayed on the electronic warning sign, the white progress bar indicates that the pedestrian is farther away from the vehicle than a safety threshold, the yellow progress bar indicates that the pedestrian is closer to the safety threshold, and the red progress bar indicates that the pedestrian is about to enter the path directly in front of the vehicle.

[0011] Preferably, the laser emitter is arranged on the third rotating seat and is located at the bottom of the AI ​​camera, and the laser emitter is used to project a visible light laser curtain wall onto the side of the lane located at the pedestrian passage in working mode.

[0012] Preferably, the laser spotlight is mounted on the first rotating seat, and the laser spotlight is a traveling spotlight, which is used to project a movable tracking light beam to pedestrians.

[0013] Preferably, the early warning component further includes a buzzer, which is arranged on the front side of the connecting seat and located in the middle of the far-infrared sensor, and is used to synchronously emit a sound warning signal in the working mode.

[0014] Preferably, a snapshot camera is provided on one side of the AI ​​camera on the third rotating seat, which is used to electronically capture vehicles that do not give way to pedestrians.

[0015] Preferably, auxiliary fill lights are provided on the top and bottom of the laser radar on the second rotating seat, and the auxiliary fill lights are used to enhance the monitoring field of view of the AI ​​camera and the snapshot camera under low light conditions.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes multi-dimensional and all-round pedestrian monitoring by arranging an AI camera, a lidar and a far-infrared sensor to form a monitoring component. The AI ​​camera can capture the visual characteristics of pedestrians and provide clear image information under good lighting conditions. The lidar uses the reflection principle of laser beams and is not affected by light and weather. It can accurately measure the distance and position information between pedestrians and vehicles. The far-infrared sensor can detect the presence of pedestrians in low-visibility environments, such as at night or in bad weather, by sensing the heat emitted by pedestrians. These three sensors work together to obtain pedestrian information from different angles and methods, greatly improving the accuracy and reliability of pedestrian detection. It effectively solves the problem of inaccurate detection caused by the environmental limitations of a single sensor in the existing technology, and provides more accurate data support for subsequent early warnings.

[0017] 2. The warning component of the present invention adopts a graded warning mechanism. In the working mode, the electronic warning sign will display a progress bar of different colors according to the distance of the pedestrian's position, intuitively conveying to the driver the danger level of the pedestrian's distance from the vehicle. This graded warning method allows the driver to understand the dynamics of pedestrians in advance and take corresponding driving measures according to different danger levels, such as slowing down and stopping, etc., effectively avoiding traffic accidents caused by the driver's inaccurate judgment of the pedestrian distance. At the same time, the visible light laser curtain wall projected by the laser transmitter and the movable tracking light column projected by the laser spotlight further remind the driver and pedestrians to pay attention to safety visually, and the sound warning signal emitted by the buzzer enhances the warning effect auditorily, greatly enhancing traffic safety.

[0018] 3. The present invention integrates multiple functional modules. In addition to the basic monitoring and early warning functions, it also has a snapshot camera to electronically capture vehicles that do not give way to pedestrians, and an auxiliary fill light to enhance the monitoring field of view under low light conditions, meeting the usage requirements in different scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a main structural diagram of the present invention; Figure 2 It is a front structural diagram of the present invention; Figure 3 This is the installation position diagram of the present invention; Figure 4 This is a state diagram of the present invention in working mode.

[0020] In the picture: 1. Mounting column; 2. Connecting seat; 21. First rotating seat; 22. Second rotating seat; 23. Third rotating seat; 3. Monitoring component; 31. AI camera; 32. LiDAR; 33. Far-infrared sensor; 4. Early warning component; 41. Electronic warning sign; 42. Laser transmitter; 43. Laser spotlight; 44. Buzzer; 5. Snapshot camera; 6. Auxiliary fill light. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0022] As attached Figure 1 To the attached Figure 4 As shown: The present invention provides a pedestrian crossing zebra crossing warning system device, including an installation column 1, a monitoring component 3 and an early warning component 4. The installation column 1 is set on the road at one end of the pedestrian crossing and on the right side of the main road vehicle travel direction. A connecting seat 2 is set on the top of the front side of the installation column 1, and a monitoring component 3 is set on the connecting seat 2. The monitoring component 3 includes an AI camera 31, a laser radar 32 and a far-infrared sensor 33. The monitoring component 3 is used to coordinate and monitor whether there are pedestrians on the pedestrian crossing. The early warning component 4 includes an electronic warning sign 41, a laser transmitter 42 and a laser spotlight 43. The early warning component 4 is used to obtain the monitoring results of the monitoring component 3, switch from standby mode to working mode according to the monitoring results, and perform graded early warnings on the monitoring results.

[0023] refer to Figure 1 The left side, right side and bottom of the connecting seat 2 are respectively provided with a first rotating seat 21, a second rotating seat 22 and a third rotating seat 23.

[0024] It should be further explained that the first rotating seat 21, the second rotating seat 22 and the third rotating seat 23 can all be electrically adjusted. Through a remote control system or a preset program, the angles of the monitoring and early warning equipment can be automatically adjusted according to different time periods or special traffic events to achieve intelligent management. At the same time, they can be equipped with angle sensors to provide real-time feedback on the equipment angle information, which is convenient for system monitoring and adjustment.

[0025] Among them, the connecting seat 2, the mounting column, the first rotating seat 21, the second rotating seat 22 and the third rotating seat 23 all provide loading space for all components of the early warning system equipment, and the first rotating seat 21, the second rotating seat 22 and the third rotating seat 23 provide flexible installation and adjustment space for each monitoring and early warning equipment, so that the equipment can flexibly adjust the monitoring and early warning angle according to the actual traffic scene and the requirements of the installation location, ensuring that the human-shaped crosswalk area can be fully and accurately covered, thereby improving the adaptability of the system and the monitoring and early warning effect.

[0026] refer to Figure 2 The AI ​​camera 31 is set on the third rotating seat 23, the laser radar 32 is set on the second rotating seat 22, and the far-infrared sensor 33 is set on the front side of the connecting seat 2. When at least one of the AI ​​camera 31, the laser radar 32 and the far-infrared sensor 33 detects the presence of a pedestrian in the humanoid passage area, the warning component 4 is triggered to switch to the working mode.

[0027] Among them, the AI ​​camera 31 provides clear images in good light, the lidar 32 accurately measures distance without being affected by light and weather, and the far-infrared sensor 33 detects the presence of pedestrians in low visibility. As long as one of the sensors detects a pedestrian, it can trigger an early warning in time, thereby improving the system's response speed and accuracy to pedestrian detection.

[0028] refer to Figure 2 The electronic warning sign 41 is set in the middle of one side of the mounting column 1. When the electronic warning sign 41 is in standby mode, it displays a white backlight and static warning information. When the electronic warning sign 41 is in working mode, it displays a yellow backlight, pedestrian category and pedestrian position distance danger level.

[0029] Among them, the electronic warning sign 41 displays white backlight and static warning information when in standby mode, serving as a regular reminder. In working mode, it displays yellow backlight, pedestrian category and pedestrian position distance danger level, which can provide the driver with more detailed and intuitive pedestrian information.

[0030] It should be further explained that the pedestrian categories displayed on the electronic warning sign 41 include the elderly, children, non-motor vehicle riders and disabled people.

[0031] Since different types of pedestrians have different movement characteristics and speeds, when the electronic warning sign 41 displays the pedestrian category, the driver can understand the characteristics of the pedestrian in advance, thereby more accurately predicting the pedestrian's movement trajectory and speed, and making decisions such as slowing down, stopping, or passing carefully in advance, thereby reducing the risk of traffic accidents.

[0032] refer to Figure 1 The pedestrian position distance danger level includes a white progress bar, a yellow progress bar, and a red progress bar displayed on the electronic warning sign 41. The white progress bar indicates that the distance between the pedestrian and the vehicle is greater than a safety threshold, the yellow progress bar indicates that the distance between the pedestrian and the vehicle is close to the safety threshold, and the red progress bar indicates that the pedestrian is about to enter the path directly in front of the vehicle.

[0033] The white, yellow and red progress bars correspond to different levels of danger, allowing drivers to take appropriate driving measures based on actual conditions, effectively avoiding traffic accidents caused by inaccurate distance judgment.

[0034] refer to Figure 2 and Figure 3 The laser emitter 42 is set on the third rotating seat 23 and is located at the bottom of the AI ​​camera 31. The laser emitter 42 is used to project a visible light laser curtain wall onto the side of the lane located on the pedestrian channel in the working mode.

[0035] Among them, the visible light laser curtain wall can form an obvious visual barrier when pedestrians cross the road, reminding drivers that there are pedestrians crossing ahead and they need to slow down or stop.

[0036] References Figure 2 and Figure 4 The laser spotlight 43 is installed on the first rotating seat 21. The laser spotlight 43 is a traveling spotlight, which is used to project a movable tracking light beam to pedestrians.

[0037] Among them, the laser spotlight 43 acts as a companion spotlight to project a movable tracking light beam to pedestrians, which can always illuminate pedestrians when they are crossing the road, so that the driver can clearly see the position of pedestrians from a distance. It not only improves the visibility of pedestrians, but also guides the driver's sight, allowing the driver to pay more attention to the dynamics of pedestrians, so that the driver can take avoidance measures in time and reduce the occurrence of traffic accidents.

[0038] refer to Figure 2 The warning component 4 also includes a buzzer 44, which is arranged on the front side of the connecting base 2 and located in the middle of the far-infrared sensor 33. The buzzer 44 is used to synchronously emit a sound warning signal in the working mode.

[0039] Among them, the sound warning signal emitted by the buzzer 44 can attract the driver's attention, especially when the driver is visually fatigued or inattentive, and plays a timely reminder role. Combined with the visual warning, a multi-dimensional and comprehensive warning system is formed, which greatly improves traffic safety.

[0040] refer to Figure 2 A capture camera 5 is provided on one side of the AI ​​camera 31 on the third rotating seat 23, which is used to electronically capture vehicles that do not give way to pedestrians.

[0041] Among them, the snapshot camera 5 can effectively restrain the driver's behavior, prompting the driver to abide by traffic rules and give way to pedestrians.

[0042] refer to Figure 2 Auxiliary fill lights 6 are provided on the top and bottom of the laser radar 32 on the second rotating seat 22. The auxiliary fill lights 6 are used to enhance the monitoring field of view of the AI ​​camera 31 and the snapshot camera 5 under low light conditions.

[0043] Among them, the auxiliary fill light 6 provides an additional light source, so that the camera can capture clear images at night or in low light conditions, improving the accuracy and reliability of pedestrian detection and capture, and ensuring that the system can work normally in various environments.

[0044] In one embodiment, a solar charging device is further included. The solar charging device is arranged on the top of the installation column to supply power to the entire system equipment, thereby achieving energy conservation and environmental protection and reducing dependence on external power sources.

[0045] Working principle: First, install the warning system equipment on the road at one end of the pedestrian crossing on the right side of the main road vehicle driving direction. Figure 3 As shown, when the pedestrian crossing warning system equipment is working, the AI ​​camera 31, the laser radar 32 and the far-infrared sensor 33 jointly monitor the pedestrian crossing. As long as one of the sensors detects the presence of a pedestrian, it will trigger the warning component 4 to switch from standby mode to working mode. After entering the working mode, the electronic warning sign 41 set in the middle of the front side of the installation column 1 switches from displaying a white backlight to displaying a yellow backlight, and displays the corresponding pedestrian category and pedestrian position distance danger level, providing detailed and intuitive information for the driver to help him predict the pedestrian's actions and make decisions. At the same time, the laser emitter 42 will project a visible light laser curtain wall toward the lane on the side of the pedestrian passage to form a visual barrier to remind the driver. The laser spotlight 43 acts as a follow-up spotlight to project a movable tracking light beam to the pedestrian, thereby improving the visibility of the pedestrian and guiding the driver's sight. In addition, the buzzer 44 will simultaneously emit a sound warning signal. Multiple methods work together to reduce the risk of traffic accidents.

[0046] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pedestrian crossing zebra crossing warning system device, characterized in that: include: An installation column (1) is provided on the road at one end of the pedestrian crossing and on the right side of the main road vehicle travel direction, and a connecting seat (2) is provided on the top of the front side thereof; A monitoring component (3) is provided on the connecting seat (2), and includes an AI camera (31), a laser radar (32), and a far infrared sensor (33), which are used to cooperate with each other to monitor whether there are pedestrians on the pedestrian crossing; and An early warning component (4) includes an electronic warning sign (41), a laser emitter (42) and a laser spotlight (43), and is used to obtain the monitoring results of the monitoring component (3), switch from a standby mode to an operating mode according to the monitoring results, and perform graded early warnings on the monitoring results.

2. A pedestrian crossing warning system device as claimed in claim 1, characterized in that: A first rotating seat (21), a second rotating seat (22) and a third rotating seat (23) are respectively provided on the left side, the right side and the bottom of the connecting seat (2).

3. A pedestrian crossing warning system device as claimed in claim 2, characterized in that: The AI ​​camera (31) is arranged on the third rotating seat (23), the laser radar (32) is arranged on the second rotating seat (22), and the far infrared sensor (33) is arranged on the front side of the connecting seat (2). When at least one of the AI ​​camera (31), the laser radar (32) and the far infrared sensor (33) detects the presence of a pedestrian in the human-shaped passage area, the warning component (4) is triggered to switch to the working mode.

4. The pedestrian crossing warning system device according to claim 1, characterized in that: The electronic warning sign (41) is arranged in the middle of one side of the mounting column (1). When the electronic warning sign (41) is in standby mode, it displays a white backlight and static warning information. When the electronic warning sign (41) is in working mode, it displays a yellow backlight, pedestrian category, and pedestrian position distance danger level.

5. The pedestrian crossing warning system device according to claim 4, characterized in that: The pedestrian position distance danger level includes a white progress bar, a yellow progress bar, and a red progress bar displayed on the electronic warning sign (41), wherein the white progress bar indicates that the distance between the pedestrian and the vehicle is greater than a safety threshold, the yellow progress bar indicates that the distance between the pedestrian and the vehicle is close to the safety threshold, and the red progress bar indicates that the pedestrian is about to enter the path directly in front of the vehicle.

6. The pedestrian crossing warning system device according to claim 2, characterized in that: The laser emitter (42) is arranged on the third rotating seat (23) and is located at the bottom of the AI ​​camera (31). The laser emitter (42) is used to project a visible light laser curtain wall onto the side of the lane located at the pedestrian passage in the working mode.

7. The pedestrian crossing warning system device according to claim 1, characterized in that: The laser spotlight (43) is mounted on the first rotating seat (21). The laser spotlight (43) is a traveling spotlight used to project a movable tracking light beam toward pedestrians.

8. The pedestrian crossing warning system device according to claim 1, characterized in that: The early warning component (4) further comprises a buzzer (44), which is arranged on the front side of the connecting seat (2) and located in the middle of the far-infrared sensor (33), and is used to synchronously emit a sound warning signal in the working mode.

9. The pedestrian crossing warning system device according to claim 2, characterized in that: A capture camera (5) is provided on the third rotating seat (23) on one side of the AI ​​camera (31), and is used to electronically capture vehicles that fail to give way to pedestrians.

10. The pedestrian crossing warning system device according to claim 9, characterized in that: Auxiliary fill lights (6) are provided on the top and bottom of the laser radar (32) on the second rotating seat (22), and the auxiliary fill lights (6) are used to enhance the monitoring field of view of the AI ​​camera (31) and the snapshot camera (5) under low light conditions.

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